An RX 6900 XTX prototype has leaked, in what would have been AMD's most powerful RDNA 2-based reference card. The RX 6900 XTX has a built-in AIO cooler and a slick design, albeit one that no gamer will ever be able to purchase.
https://www.notebookcheck.net/AMD-Radeon-RX-6900-XTX-reference-card-leaks-with-an-AIO-cooler-and-a-minimalist-design.534415.0.html